Tutor personal GMAT QUANT, GRE QUANT, EA QUANT, FRM QUANT, SAT QUANT, IB Mathematics

!-- INICIO AVISO CLAUDIO HURTADO – TUTORÍAS QUANT (SIN BOTÓN) --
style
/* Contenedor principal con tipografía y colores institucionales */
.ch-aviso-wrapper {
max-width: 100%;
margin: 0 auto 2rem auto;
padding: 1.5rem;
font-family: 'Segoe UI', Roboto, system-ui, -apple-system, sans-serif;
background: #0b1a2f;
background-image: radial-gradient(circle at 10% 20%, #132a44 0%, #0b1a2f 90%);
border-radius: 28px;
box-shadow: 0 -px rgba(-);
color: #eef5ff;
position: relative;
overflow: hidden;
transition: all 0.2s ease;
border: 1px solid rgba(-);
}

/* Decoración geométrica de fondo (gráfica única) */
.ch-aviso-wrapper::before {
content: '';
position: absolute;
top: -120px;
right: -120px;
width: 340px;
height: 340px;
background: radial-gradient(circle, rgba(-) 0%, transparent 70%);
border-radius: 50%;
pointer-events: none;
z-index: 1;
}
.ch-aviso-wrapper::after {
content: '∑';
position: absolute;
bottom: -20px;
left: -10px;
font-size: 180px;
font-weight: 700;
color: rgba(-);
pointer-events: none;
z-index: 1;
font-family: 'Times New Roman', serif;
}

/* Contenido por encima de la decoración */
.ch-aviso-content {
position: relative;
z-index: 2;
}

/* Título principal */
.ch-aviso-title {
font-size: clamp(1.8rem, 5vw, 2.8rem);
font-weight: 800;
letter-spacing: -0.01em;
line-height: 1.15;
margin: 0 0 0.3rem 0;
color: #f9e27b;
text-shadow: 0 2px 12px rgba(-);
border-left: 6px solid #f9c80e;
padding-left: 1.2rem;
}
.ch-aviso-title small {
display: block;
font-size: 0.55em;
font-weight: 400;
color: #b6d0f0;
letter-spacing: 0.3px;
margin-top: 0.2rem;
text-shadow: none;
}

/* Subtítulo / eslogan */
.ch-aviso-sub {
font-size: clamp(1rem, 1.8vw, 1.25rem);
font-weight: 400;
color: #c9ddf5;
margin: 0.2rem 0 1.2rem 1.8rem;
opacity: 0.9;
display: flex;
align-items: center;
gap: 0.4rem;
flex-wrap: wrap;
}
.ch-aviso-sub .ch-badge {
background: rgba(-);